A process is provided for synthesizing an azo compound, such as AIBN, by oxidation of a hydrazo compound using hydrogen peroxide. This process comprises a step of adding to the reaction medium a particular reducing agent, such as hydrazine.
A process for synthesizing an azo compound by oxidation of a hydrogen compound in the presence of a catalyst and a compound of formula (I) is described in which R
1
, R
2
and R
3
(R
1
)(R
2
)C(PO
3
(R
3
)
2
)
2
(I)
are as defined. The use of a compound of formula (I) as complexing agent for a catalyst is also described.
An azoimino ether, which is an intermediate for preparing polymerization initiators, can be produced by reacting a hydrazonitrile having a hydrazo group and at least one cyano group in the molecule with chlorine in the presence of a primary alcohol, preferably in a non-aqueous organic solvent.
La présente invention se rapporte à un procédé de synthèse d'un composé azo, tel que l'AIBN, par oxydation d'un composé hydrazo à l'aide de peroxyde d'hydrogène. Ce procédé comprend une étape d'ajout au milieu réactionnel d'un agent réducteur particulier, tel que l'hydrazine.